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Make sure the device is connected to the Internet. If you delete items from My Activity on one device, they might still appear on any devices that are offline. When the offline device connects to the Internet, the items will be removed.

Clear your browser's cache and cookies. Learn how to clear cache and cookies in Chrome. If you use another browser, check its instructions for how to clear cache and cookies.

When you delete items from My Activity, they are permanently deleted from your Google Account. However, Google may keep service-related information about your account, like which Google products you used and when, to prevent spam and abuse and to improve our services.